Among non-combustible materials, except for a few that inherently possess flame retardant properties, most are produced by treating flammable materials with flame retardants, fireproof impregnants, or fireproof coatings to achieve flame retardant properties. For fire safety reasons, fireproof materials should be used as much as possible in civil construction to replace flammable materials, in order to reduce fire load and slow down the spread of fire. Their fireproof performance is determined by corresponding combustion tests according to different usage requirements.

    During the construction by the manufacturer of Youlinsheng fire-resistant coating for steel structures, areas and other items that do not require fire protection should be covered for protection. The newly applied coating should be protected from dirt contamination and mechanical impact. Article 6: During the construction process and before the coating dries and cures, the ambient temperature should be maintained between 5~38℃, the relative humidity should not exceed 90%, and the air should be well-ventilated. It is not advisable to work when the wind speed is greater than 5m/s, or on rainy days, or when there is condensation on the surface of the components.

    The quality requirements stipulate that fire-resistant coatings used to protect steel structures must have fire endurance test reports and physicochemical property test reports issued by national testing institutions. They must also have production licenses issued by fire supervision departments and product qualification certificates from the manufacturers. Article 2: When steel structure fire-resistant coatings are shipped out of the factory, the product quality should comply with the relevant standards.

    It should also be accompanied by the name of the paint variety, technical performance, manufacturing batch number, storage period, and instructions for use. Article 3: The primer and topcoat in fire-resistant paint should be compatible with each other, and the primer should not rust steel. Article 4: In the same project.

   The relative reduction in the content of fire-resistant coatings and flame retardants, on one hand, enhances the adhesion between the substrate and the coating, as well as between coatings, thereby improving the bonding strength. On the other hand, the decrease in the amount of flame retardants and fire-resistant fillers diminishes the fire resistance of the coating.

   The impact of fire-resistant coatings on the fire resistance and bonding strength of tunnel lining. As the amount of fire-resistant fillers increases, the fire resistance limit of the coating increases, while the bonding strength decreases. The content of fire-resistant fillers should be appropriate; if it is too high, it will be an important factor in predicting the growth of the intumescent coating market in the forecast period.

   Steel structure fire-resistant coatings can also be classified according to their thickness. There are three types: ultra-thin steel structure fire-resistant coatings, with a thickness of less than or equal to 3 millimeters; thin steel structure fire-resistant coatings, with a thickness greater than 3 millimeters but less than 7 millimeters; and thicker steel structure fire-resistant coatings, with a coating thickness greater than 7 millimeters but less than or equal to 45 millimeters.

    There are many factors that influence the quality variations of fire-resistant coatings for steel structures. Different coating manufacturers have certain impacts on product quality in terms of raw materials, production processes, and formulations. Additionally, even for products from the same manufacturer, slight quality variations exist between different batches.

    When spraying fire-resistant coatings on steel structures, the appropriate layer thickness and construction process should be selected based on the fire resistance limit of the components involved, in order to achieve fireproofing effects. Jiangxi Youlinsheng Fire-resistant Coating Manufacturer